Kyosuke, let's get married. Assuming divorce.Kyosuke was kicked out of his parents' house because he was still a NEET even at the age of 30. The next thing that happened to him was a surprise proposal from his only best friend, Rui! They had been "just friends" for over ten years. What will a man and woman discover in just 100 days of marriage? Romantic boy x surrealist girl.A pure love comedy about a fake marriage between two people who are definitely not suitable for marriage!